1. Effect of Fly Ash and nanoCaCO3 on the Setting Time of Cement Paste
- Author
-
Da Wei Huang, Zhi Qin Zhao, Zhi Ge, Gong Feng Xin, and Ren Juan Sun
- Subjects
Waste management ,Test group ,Fly ash ,Setting time ,Environmental science ,General Medicine ,Cementitious ,Cement paste - Abstract
This paper presents an experimental study to evaluate the effects of fly ash and nanoCaCO3 on setting time of cement paste. The test group included the contents of fly ash was 30%, 40%, 50%, 60% and content of nanoCaCO3 was 2.5%, 5%, 10%, 20%. Results indicate that setting time was increased with the incorporation of fly ash, shortened with the incorporation of nanoCaCO3. The incorporation of 5% nanoCaCO3 by mass of cementitious materials reduced initial and final setting times by 60 and 70 min, respectively. In comparison to the referenced paste with 40% fly ash. The best fly ash content appear to be 40% when nanoCaCO3 was added.
- Published
- 2013